Improvement in mosquito and fly screens



J. w. BUUGHTON.

Improvement in Mosquito and Fly s cree'ns.

Patented JulyZ, 1872'.-

' Fig, l.

Jul/entan- Witness 68.-

UNITED STATES l PATENT OFFICE.

JoHN BOUGHTON, oF PHILADELPHIA, PENNSYLVANIA.

Specification forming part of Letters Patent No. 128,582, dated July 2, 1872.

SPECIFICATION.

' T 0 all whom it may concern:

of the window-frame, on which netting or.

other thin fabric is wound, and, when unrolled, extended and secured to the opposite side, covering the opening of the window, said roller being inserted in a screw-ring or its equivalent at the top, and provided with an adjustable stepv at the bottom, the netting being secured to arod or slat, which is connected to the opposite side, when required, by a fixture, which admits of ready disconnection; and the invention further consists in the manner of attaching the netting to the roller by means of a groove and wire, and in the device for connecting the rod or slat.

In the drawing, Figure 1 represents my screen applied to an open window. Fig. 2 is an enlarged elevation of the roller detached, showing the adjustable step in section and a loose connection at the top in place of the screw-ring shown in Fig. 1. Fig. 3 is a crosssection of the roller. Fig. 4 is a plan view of the adjustable step. Figs. 5 and 6 are modifications of the same. Fig. 7 is a vertical section of the lower portion of the roller and step when the latter is of the form shown in Fig. 6. Fig. 8 is a view of the lower end of the roller, showing the method of connecting the end of the wire which secures the netting in the groove. Fig. 9 is a fragmentary view,

7 showing the fasteningwhich receives the foot of the rod.

Among the objects which my invention seeks to attain are enabling the netting to be adjusted and kept tight, so that the wind or other cause will not loosen it at the edges, and that the window-opening may be easily uncovered when desired, and when the season for their use is past they may be stored by compactly rolling the netting upon the rollers, ogcupying but small space, and also economy 0 cost.

Thewindow-casingisrepresentedby theletter A, the sash-B being shown raised. The screenroller 0 is attached to the casing by means of an eye, D, screwed into the casing, through which the top of the roller, preferably turned down to a smaller size, passes; or, as a modification thereof, a hinged plate, D, one-half of which is attached to the casing and the other perforated to receive a pin, 0, in the top of the roller. The lower end of the roller has a central pivot, J, and side pin k,- and a step, H, affixed to the window-stool, is provided with a central hole, I, to receive the pivot J, which is surrounded by a series of holes, 6, to retain the pin k. The netting being attached to the roller, and its opposite side to the rod G, and the latter secured to the window-casing, the roller 0, by raising sufficiently to release the pin 70, may be turned to produce sufficient tension of the netting and the pin reinserted in one of the holes i, thus retaining it taut. A modification of this adjusting device consists in driving a flat pin, shown in Fig. 7, into the roller, and forming the adjustable step with radial slots surrounding a central aperture, as at H, Fig. 6, by which the same result is obtained. Or the step may be formed of aflat piece of metal, bent, as seen in Fig. 5, and having teeth n n on its outer circular end, the interstices of which receive the pin 70 the same as do the holes 1'. I connect the netting with the roller by means of a slot or kerf, f, longitudinally of the roller, in which a wire, F, is embedded. One end of the wire may be formed into a hook, on, and clasped around the pivot J and pin 70, while the remainder, which nearly fills the slot, is pressed in, carrying in the edge of the fabric and securely retaining it. If preferred, the wire may be out OK flush with the roller; but the hook above described, in connection with the pin J, prevents any tendency which it otherwise might have to slip out of its place. The rod G is, preferably, attached to the window by a screw-eye, p, at the top, and its lower end is seated in a circular clasp, o, from which it is readily removable by lifting it slightly.

The apparatus, so constructed, is very Sim ple and easy of application, inexpensive, and may also be applied to doors and other-apertures with equal facility.

What I claim as my invention is-- 1. A window-screw composed of the single roller 0, secured to the casing by the eye D,

or its equivalent, at the top, and the adjustequivalent, on the vertical roller 0-, as set forth.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

JOHN W. BOUGHTON.

Witnesses:

D. R. JAMESON, Jr., FRANK L. FORD. 

